Veggie Bean Burgers

INGREDIENTS

• 2 teaspoons olive oil
• 1 cup chopped onion
• 4 garlic cloves, minced
• ½ cup grated carrots
• 1 teaspoon chili powder
• ½ teaspoon ground cumin
• Two 15½-ounce cans black beans, rinse and drained
• 2 tablespoons Dijon mustard
• 2 tablespoons soy sauce
• 2 tablespoons ketchup
• 2 tablespoons minced fresh parsley
• 1½ cups cooked brown rice
• 1 cup chopped cremini mushrooms
• Salt and black pepper, to taste
• Pinch of cayenne pepper
• 1 teaspoon vegetable oil